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• How do I solve this problem ?? PHP-FFMpeg

  12 octobre 2019, par Ahmed Rashid

  I trying encoding video by PHP-FFMpeg library but there some errors that shown to me. The error

  Fatal error: Uncaught Alchemy\BinaryDriver\Exception\ExecutionFailureException: ffmpeg failed to execute command "C:/FFmpeg/bin/ffmpeg.exe" -y -i video1.mp4 -async 1 -metadata:s:v:0 start_time=0 -threads 12 -vcodec libx264 -acodec libfaac -b:v 1000k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -vf "[in]scale=320:240 [out]" -pass 1 -passlogfile "C:\Users\DELL\AppData\Local\Temp\ffmpeg-passes5d9e35f516ce1e66b8/pass-5d9e35f517030" export-x264.mp4: Error Output: ffmpeg version N-95216-ge6625ca41f Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20190918 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheor in C:\xampp\htdocs\AnimeX\s2\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\Media\AbstractVideo.php on line 106`

  The library PHP-FFMpeg library

• How to improve the sharpness of the output video on centOS ?

  11 octobre 2019, par Mads Lee

  I’m using the same ffmpeg cmd on Windows and centOS to add timecode for the input video, the output video on centOS has low sharpness and mosaic.

  ffmpeg version :

  ffmpeg on Windows: 4.1.3 built with gcc 8.3.1 (gcc) 20190414
  
  
  
  ffmpeg on centOS: 4.1.0 built with gcc 5.8.5(gcc) 20150623 (Red Hat 4.8.5-16)

  ffmpeg cmd :

  ffmpeg -i \input.mp4 -vf drawtext="timecode='00\:00\:00\:00':rate=30:x=10:y=10:text=qwer:fontsize=50:fontcolor=yellow:boxcolor=black" \output.mp4

  Video screenshot :

  output video on Windows

  output video on centOS

  full log on centOS :

  [root@3b8e5c174983 installfile]# ls
  
  ffmpeg-4.1.3  ffmpeg-4.1.3.tar.gz  input.mp4  yasm-1.3.0  yasm-1.3.0.tar.gz
  
  [root@3b8e5c174983 installfile]# ffmpeg -i /installfile/input.mp4  -vf drawtext="fontfile=/usr/share/fonts/lyx/simhei.ttf:timecode='00\:00\:00\:00':rate=30:x=10:y=10:text=qwer:fontsize=50:fontcolor=black" /installfile/output.mp4
  
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-16)
  
    configuration: --enable-libfreetype
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/installfile/input.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.25.100
  
    Duration: 00:00:25.68, start: 0.000000, bitrate: 3620 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt709/bt709), 1920x1080, 3490 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  Output #0, mp4, to '/installfile/output.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.20.100
  
      Stream #0:0(und): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 1920x1080, q=2-31, 200 kb/s, 30 fps, 15360 tbn, 30 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc58.35.100 mpeg4
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
        encoder         : Lavc58.35.100 aac
  
  frame=  769 fps=108 q=31.0 Lsize=   10290kB time=00:00:25.70 bitrate=3279.4kbits/s speed=3.62x    
  
  video:9870kB audio:397kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.222400%
  
  [aac @ 0x37dbec0] Qavg: 2346.057
  
  [root@3b8e5c174983 installfile]# 

  it’s about the version of ffmpeg ?

• YouTube_dl doesn't find ffmpeg

  10 octobre 2019, par user702846

  I would like to download a set of youtube file as audio, mp3.

  import youtube_dl
  
  
  
  ydl_opts = {
  
      'format': 'bestaudio/best',
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'mp3',
  
          'preferredquality': '192',
  
      }],
  
  }
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
      ydl.download(['https://www.youtube.com/watch?v=cmNEDz7YZSw']) 

  It successfully download the file as m4a - however complains about ffmpeg installation.

  ERROR: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.

  I do have ffmpeg installed and located at /usr/local/bin/ffmpeg and also have added to my PATH using

  os.environ["PATH"] += '/usr/local/bin/ffmpeg'

  but still the error is there. I am using MacOS Mojave and my ffmpeg specification are as following,

  fmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  
    configuration: --disable-encoder=vorbis --enable-libvorbis --enable-libmp3lame --disable-x86asm